New Barium Niobium Sulfides. Part 2. Preparation of BaNb2.85S6.23 and BaNb5.33S11.0. -Pure single phase BaNb2.85S6.23 (I) is prepared from a starting sulfide, obtained within 3 d from BaCO3 and Nb2O5 (Nb/Ba = 2.85) in CS2 at 750 • C, by controlling the partial pressure of sulfur. Single phase BaNb5
Structure and Physical Properties of the Barium Niobium Sulfides BaNbS3 and BaNb0.8S3-δ
✍ Scribed by Sung-Jin Kim; Hyun-Sook Bae; Kyeong-Ae Yee; Jin-Ho Choy; Dong-Kuk Kim; Nam-Hwi Hur
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 379 KB
- Volume
- 115
- Category
- Article
- ISSN
- 0022-4596
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The room temperature crystal structures of three compositions in the system BaIr 1 ؊ x Co x O 3 ؊ (x ؍ 0.5, 0.7, 0.8) have been determined from X-ray and neutron powder di4raction data. BaIr 0.5 Co 0.5 O 3.02(1) , BaIr 0.3 Co 0.7 O 2.84(1) , and BaIr 0.2 Co 0.8 O 2.83(1) adopt 12R, 10H, and 5H per